Drop setting sysctl params which defined by default in model

Change-Id: Iad2e35061ac76d27ec13b1e25b35c9383a2835f8
Related-Prod: PROD-32182
(cherry-picked from commit 41d5454ebe8b95db1eacdf7f065c7981bcaeadac)
diff --git a/opencontrail/common.sls b/opencontrail/common.sls
index 009ab26..70e5da0 100644
--- a/opencontrail/common.sls
+++ b/opencontrail/common.sls
@@ -26,10 +26,6 @@
   sysctl.present:
   - value: "/var/crashes/core.%e.%p.%h.%t"
 
-net.netfilter.nf_conntrack_max:
-  sysctl.present:
-    - value: 256000
-
 {% if not pillar.opencontrail.compute is defined %}
 
 net.netfilter.nf_conntrack_tcp_timeout_time_wait:
@@ -63,22 +59,6 @@
   sysctl.present:
     - value: 1000
 
-net.ipv4.tcp_keepalive_time:
-  sysctl.present:
-    - value: 5
-
-net.ipv4.tcp_keepalive_probes:
-  sysctl.present:
-    - value: 5
-
-net.ipv4.tcp_keepalive_intvl:
-  sysctl.present:
-    - value: 1
-
-fs.file-max:
-  sysctl.present:
-  - value: 124165
-
 security_limits_conf:
   cmd.run:
   - names: